Discussion on the LED Driver
fecha:2011-06-07 14:49
estado:para resolver
pregunta:admin
shown in Figure 3, we can see a smaller current sense voltage will produce high efficiency LED driver. Figure 4 illustrates the selection of 0.25V reference voltage of 1V reference voltage power supply and power use compared to the situation of both efficiency. Low voltage power supply current sensing is more effective, regardless of how the input voltage or LED current, as long as other things being equal, a lower reference voltage can improve efficiency and extend battery life.
PWM dimming
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